206 JOURNAL OF THE SOCIETY OF COSMETIC CHEMISTS ists would be particularly interested in flame chemistry, although this chapter appears to be a suitable in- troduction to this subject. Similar comments could also apply to the chapter on asymmetric reduction but the use of these techniques in terpene chemistry certainly has a bearing on the synthesis of perfume ingredients. On the other hand, the remaining chapters appear to this revie•ver to deserve study by chemists engaged in the development of consumer prod- ucts. Of special interest is the chap- ter on stereoregular polymers, which have found application in the manu- facture of some of the most impor- tant packaging materials available today. This chapter alone is wdl worth the price of the book. The subject of the kinetic effects of isotopes has been explored by organic and physi- cal chemists for a quarter of a century. Unfortunately, this phe- nomenon has occasionally been neglected in studies of the in vivo metabolism of tagged chemicals. The very basic importance of photo- synthesis need not be belabored here. Suffice it to say that the recently claimed photosynthesis in the ab- sence of living cells holds great prom- ise for supplying the food require- ments of future generations. As anticipated in the earlier re- view of Volumes I and II, this survey by topics has proved valuable, and all of us look forward to forthcoming volumes in this series.--M. M. Rieger Warner-Lambert Research Insti- tute. THE CONDENSED CHEMICAL DIC- TIONARY, 7th Edition, edited by Arthur and Elizabeth Rose. Rein- hold Publishing Corp., New York, N. Y. 1966. 1044 pages. Price $17.50. This reviewer had the pleasure to review what appears to be this book's companion volume, Encyclopedia of Chemistry by Clark and Hawley, several months ago. Readers of these columns may recall the breadth and scope of the contents of this encyclopedia. The Condensed Chemical Dictionary, on the other hand, is a reference volume, the main value of which is to be found in its large number of entries. It is next to impossible to de- scribe the contents of this volume ex- cept by stating that in its pages can be found about 40,000--50,000 sep- arate descriptions of pure chemicals, trade name chemicals, and rdated information. The alphabetical in- clusion of trademarks and the list of almost 600 different suppliers of chemicals makes this volume not only a desk reference for the chemist but a guide useful for purchasing agents and chemical executives. The individual entries supply a wealth of useful information, the nomenclature is good, and the book appears to be essentially free of typographical errors. Although the price is relatively high, this dictionary should pay for itself with the time it can save those who are seeking quick authoritative information--M. M. Rieger--Warner-Lambert Research Institute.